Phonograph attachment for telephones.



A. HATCHETT. PHONOGRAPH ATTACHMENT FOR TELEPHONES.

APPLICATION FILED Nov. 4, 1907.

Patented Sept. 15, 1908.

A. HATCHETT. PEONOGRAPH ATTACHMENT EOE TELEPHONES.

APPLICATION FILED NOV 4` 1907.

Patented Sept. 15, 1908.

WVM/meow ANDREWHATCHETT, OF LOUISVILLE, KENTUCKY.

PHONOGRAPH ATTACHMIEN T FOR TELEPHONES.

No.`ses,e42.

speeacetien @f Letters Patent.

Patented sept. 15, 190s.

Application led November 4, 1907. Serial No. 400,625.

To all whom tt may concern:

Be it known that LANDREW HATCHETT, a citizen of the lUnited States,residing at Louisville, in the ficounty of Jefferson and State-ofKentucky, have invented certain new and useful `Improvements inPhonograph Attachments for Telephones and I do declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled -in the art to which it appertains to make and usethe same.

This invention relates to attachments to telephones, and has for itsobject to provide a device which will automatically deliver a message toa telephone when its subscriber is absent. f

` Another object is to provide a device of this kind by which theoperator at the central telephone station may start to operating aphonograph which will deliver a message to the telephone at one station,as for instance, the home of a subscriber, which message will bereceived by a person at another station. Y

`vAnother object lis to provide 'a device which Will magnify the soundreceived by the ordinary telephone, and which may be used in combinationwith the talking device mentioned.

Herein is described an embodiment of my invention which illustrates theessential features of my invention. In this descripvtion I havementioned Aminute details, but I do not limit myself t0 these, butreserve the right to make such changes in the details of construction asfall-within the spirit and sco e of the invention.

n the annexed drawing, forming a part of this specification and in whichlike reference characters refer to like parts throughout the severaligures,-Figure 1 shows my complete device in combination with anordinary wall telephone, the electrical connections being showndiagrammatically; Fig` 2 is a longitudinal section through thephonographattachment, the motor being shown in elevation; Fig. 3 is a crosssectional view shown on the line 3-3 ofFig. 2.

As shown, my device consists of a phonograph A, an ordinary telephone B,and a sound magnifying receiver, each of which will be explained. below,and all electrically connected with eachother and with the cen.- traltelephone station, as shown.

t -The phonograph A is shown in detail in Figs. 2 and 3, and comprises abase 1 on which is supported by means of pairs of legs 2, 2, an outersupporting cylinder 3, and a pair of,legs 4 on which is supporteda motor5. This motor may be wound for either director alternating current, isof usual construction' and therefore not fully described, and isprovided with bearings for a shaft 6 to support its rotating parts. Saidshaft is continued through a spring casing 7, the closed end 8 of theouter cylinder into an inner rotating cylinder 9. Said shaft 6 has abearing, as at 10, in the end of the outer cylinder,'and has a squaredreduced portion 11 slidably and nonrotatably receiving a similarlysquared axial opening 12 in yhe inner cylinder v9. The inner cylinder isprovided with a threaded flange portion 13 and a reduced portieri 14,forming a cylindrical receiving portion 15 for the record cylinder 16.The outer cylinder 3 for more than half its length at the motor end isprovided interiorly with screw threads 17, cooperating with threads 18on the outside of the flanged portion 13.

Within the casing 7 and surrounding the shaft 6 is a coiled spring 19rigidly connected to said shaft 6, and the periphery of said casing 7.This spring is wound in opposition to the motor 5 and is wound up whenthe motor rotates the cylinder 9. This rotation causes the cylinder 9 totravel away from the motor until the motor current is cut off, when thespring 19 unwinds, rotating the inner cylinder in the oppositedirection, moving the whole toward the motor until the motion is limitedby the springs 20, 21 and 22.

An automatic switch may be provided to inform central to cut off thecurrent from tlie motor when the outward limit of movement of the innercylinder 9 is reached. This automatic switch is mounted on a base 23 tothe lugs 24 at the bottom of the outer cylinder 3. This base is providedwith binding screws 25 to receive Wires 26 from the motor 5, and withbinding screws 27, 27 to receive the motor line wires 28, 28. Connectedby concealed wires with the screws 25, 25, are the pivot points 29, towhich are pivoted the contact strips 30, pivotally connected and held inparallelism by an vinsulating connecting strip 31, to an intermediatepoint of which is connected a lever 31 pivoted as at 32 to a support 33,pivoted to a lug 34 on the bottom of the outer cylinder 3. To the end ofthe lever 31 is a link 35 connecting a trigger 36, pivoted at the bottomof the end of the cylinder 3. A spring 37 holds said trig- 5 geryieldably at its upwardly inclined position.. The screws 27 areconnected by concealed wires 38 with the contacts 39. As shown in Fig.2, the strips 30 are in contact with the contacts 39, completing thecircuitbetween the motor line wires and the phonograph. When the recordcylinder 16 reaches its outward limit of movement, it presses downwardlythe trigger 36, which by means of the lever 31 and link 35 shifts thestrips 30 away from the contacts 29, thus breaking the motor circuit andcausing it to extinguish a glow-lamp 72 at the central office, thusinforming central to cut off the current from the motor circuit. Ifcentraldoes not cut 20 off the current immediately, the cylinder 9 willleave the trigger 36 by action of the spring 19, in which case, thecurrent will be restored to the motor. This operation will repeat untilcentral cuts the current off the motor circuit, and the flickering ofthe lamp caused by the making and breaking of the circuit will attractthe attention of central.

About midway of the upper outer cylinder 3 is an opening 40 e ongated inshape in a direction transverse to the longitudinal length of thecylinder. On each side of said opening are spaced lugs 41, perforated asat 42 for the reception of pins 43, proj ecting laterally from thetransmitter case 44.

On the inside of said spaced lugs are inward projections 45, adapted tolimit the pivotal movement of said transmitter case in one direction.Within said transmitter case is clamped a diaphragm 46 by means of aninverted cup 47, screwthreaded into the diaphragmcase 44. Said cupcontains therewithin a contact 48, mounted on the spring strip 49connected to the binding screw 50.

Another binding screw 51 has electrical connection with the diaphragm46, as by means of a wire 52. Said binding screws 50 and 51receive'fwires 54 and 55, whichl connect with the line wires 56 and57'of the telephone B.

50 Fastened to the lower part of said diaphragm 46, is a needle plate58, to which is attached the diaphragmneedle 59. The diaphragm box 44 isthus pivoted in order that when the record cylinder 16 is rotated v inthe direction of the arrow shown in Fig. 3,

the record cylinder will tend to movethe needle 59 in the direction ofsaid arrow and hold the diaphragm box against the projection 45, andthus vibrate the diaphragm 46. G0 When the record cylinder is rotatedbackward in the direction reverse to said arrow, it will tend to carrythe needle backward toa position shown bythe dotted lines, at thev sametime moving the diaphragm box away from contact with the' lugs 45, thuspermitart of the ting the needle '50 to rest loosely on the recordcylinder without injury to either.

The telephone B is provided with binding screws 60, as is usual withtelephones, to receive the connections 61 Aof the-telephone re- 70ceiver 62. In a series with said connections is a knife switch 63,mounted on the base of the telephone, as shown. Connected to eachterminal of said knife switch are the wires'64, 65, connecting the same'to binding 75 screws 66, 67 on a transmitter 68. This transmitter is ofthe usual -watchcase form, and is provided with a sound magnifying horn69, and is mounted on a base of nonconducting material 70, which may beatso tached to a wall or other support as 71. The telephone wires 56 and57 are connected to the usualbinding posts of the telephone B.

The operation of my device is as follows: When a person desires to speakto the subscriber using this device, he calls up the central office inthe usual way and the operator at central attempts to call up thesubscriber. On receivin no response, the operator connects the te ephoneof said person with the 9o telephone of the subscriber and operates -theswitch, sending a current over the motor line wires 28, 28. This currentoperates the motor 5, which, in turn, rotates the rotating parts of thephonograph in the direction indicated by the arrow of Fig. 3, thuscausing j the telephone to transmit over the line wires 56, 57, by meansof the transmitter 44 any message which has previoulsy been talked inthe phonograph. This message may be received by said person by means ofthe receiver 62- in the usual manner, but'if the sound transmitted isnot loud enough, said person opens the knife switch 63, thus throwingthe receiver 68 in series. with the 105 receiver 62. The receiver 68, bymeans of the horn 69, magnifies the sound so it can be easily understoodby the said person. When all of the message has been received, the innercylinder 9 has reached its outer limit of 11o movement, and the trigger36 is tripped, breaking the electrical connection between the strips 30and the contacts 39, thus informing central to cut 0H the current fromthe motor 5. After the current'is thus cut 115 off the coiled spring 19reacts and rotates the cylinders 9 and 16 backwardly until the positionas shown in Fig. 2 is reached, the inward movement of the cylinder 9being arrested by the springs 20 and 21, thus pre- 120 venting any shockto the moving parts.

I have shown my device provided with the sound `magnifying receiver 68and the automatic switch designated by reference characters 25 and 36.However, I do not wish 125 to limit myself to the use of these, as thesame may be omitted if preferred; neither do I wish to limit myself tothe specific form of transmitter shown, as any of the usual forms may besubstituted. 130

Other details of construction can be changed without departing from thescope of the invention.

What I claim isz- 1. In combination, a telephone line and a transmitterfor the same, a phonographic record to vvibrate said transmitter, amotor to move said record in one direction, and a spring to return saidrecord to its original position.

2. In combination, supporting parts, a phonographic record adapted torotate in two directions, both forward and backward, a diaphragm` boXpivoted so that its needle will contact said record when the saine isrotating in one direction, so that the diaphragm will be vibrated, saidboX being so pivoted that when the record is rotated in the otherdirection the needle will pass lightly over said record.

3. In combination, a transmitter, a connecting line, a plurality ofreceivers, one of said receivers being adapted to magnify 'sound andbeing adapted to be thrown in or out of circuitwith the other at will, aphonographic record to vibrate said transmitter, a motorAv to move saidrecord in one direction and a spring to move it in the other, atransmission line t'o operate said motor, and an automatic switch tostop said motor when one limit of movement of said cylinder is reached.

4. In a device ofthe class described, a motor, having an angular shaftprojecting therefrom, a phonograph having an internally threadedcylindrical outer casing, and an inner cylinder having an outwardlyprojecting threaded ange to engage the threads of said casing, andhaving an angularly, longitudinally extending opening adapted to snuglyreceive said shaft. y

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witnesses.

ANDREW HATCI-IETT.

Witnesses:

H. D. ROBE, Jr., HARRY B.IRv1NG.

